The perfect fit, Front suspension adjustments, Shock spring preload – Polaris 2012 600 IQ Shift User Manual
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THE PERFECT FIT
Front Suspension Adjustments
Shock Spring Preload
Increasing spring preload will increase 
ski-to-ground pressure. Decreasing spring 
preload will decrease ski-to-ground pres-
sure. When adjusting, be sure the springs 
on both the left and right sides of the 
machine are at the same adjustment.
To change front shock spring preload, 
grasp the spring and rotate it.
Increasing the spring preload too much 
may adversely affect the handling of the 
snowmobile and the performance of the 
suspension. Never exceed one inch of pre-
load beyond the factory settings, and 
ensure that both sides are adjusted the 
same. When decreasing preload, make 
sure at least two turns of preload are hold-
ing the spring between the retainer on the 
top of the shock and the threaded spring 
preload adjuster nut on the shock body. 
Failure to do so could cause the retainer to fall off when the suspension 
is fully extended.
TIP: Not all models have shocks with thread-adjustable spring preload. See your
dealer for more information.
NOTICE: On some models equipped with a plastic adjuster nut, the nut will
break if it is unscrewed from the threaded body. Do not force the nut if 
resistance suddenly increases while you’re turning it.
Low
Preload
High
Preload